My 15-year-old cat suddenly has one pupil way bigger than the other since two nights ago—should I be freaking out?

I've recently noticed that my 15-year-old cat has one pupil significantly larger than the other, and this change happened just two nights ago. I'm concerned because it seems so sudden, and I haven't seen this happen before. Should I be worried about this difference in pupil size, or is it something that might resolve on its own?

Answer

It's concerning that your 15-year-old cat's pupils are now unequal in size, especially since this change happened suddenly. This could be indicative of an underlying medical issue, and it's important to assess the situation carefully.

  • Anisocoria, or unequal pupil sizes, can have multiple causes.
  • Possible causes range from eye injury to neurological issues.
  • A sudden change in pupil size should be evaluated by a vet.

Anisocoria in cats can be caused by various conditions such as ocular injuries, inflammation, or neurological disorders. Given the sudden onset, it would be wise to have your cat examined by a veterinarian to rule out serious concerns. Although sometimes pupil size differences can resolve on their own, it's always better to err on the side of caution with senior pets.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or symptoms are getting worse.

Frequently Asked Questions

  • What is anisocoria in cats?

    Anisocoria is a condition where a cat's pupils are of unequal sizes. This might indicate underlying health issues requiring veterinary attention.

  • Should I monitor any other symptoms along with anisocoria?

    Yes, symptoms like lethargy, loss of appetite, or changes in vision/behavior could be significant when assessing the cause of anisocoria.

  • Can anisocoria be a sign of an emergency?

    Yes, it could signal an urgent medical condition such as head trauma or glaucoma. If you notice additional severe symptoms, seek veterinary care immediately.

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